Sinotruk Howo 5000L to 8000L vacuum Fecal truck function description: vacuum suction truck configuration: the dedicated part consists of power take-off, drive shaft, vacuum suction pump, water-gas separator, oil-gas separator, multi-way reversing valve, boom, fecal tank, fecal discharge Valve, fecal suction gun, clean water tank, sight window, vacuum pressure gauge, pipe network system, etc.
Fecal suction truck This product is used for suction of feces, sewage, sludge and liquid mixed with small suspended debris. It has the characteristics of high suction efficiency, self-priming, self-draining and direct irrigation. It is widely used in large and medium , Small town sanitation, municipal administration, agriculture, chemical industry, factories and mining enterprises, real estate community use, vacuum suction pump can self-priming and self-discharging.
The principle of carburetor
In order for the suction truck to work continuously (driving), it is necessary to continuously supply fuel and air to the engine, not only to supply, but also to mix them properly, and the exhaust gas must be smoothly discharged after the combustion is completed. For this reason, the fuel needs to be stored in a fuel tank. To send the fuel in the fuel tank to the engine, there must be a fuel pump and pipeline. In order to prevent the fuel from being contaminated, a filter is needed to filter it. The outside air contains sand and dust, and the air sent to the engine needs to be filtered by an air filter. How to mix clean air with fuel as needed requires a non-default part, that is, the carburetor of the suction truck

Working principle of vacuum pump
To work, the vacuum pump of the fecal suction truck must first understand its working principle. The more important thing in the working principle is the consideration of power source and stability. The power of the vacuum pump comes from the chassis engine. The engine is transmitted to the vacuum pump through the gearbox, power take-off, and drive shaft. When sucking sewage, the vacuum pump draws out the air in the sealed tank to form a negative pressure, and uses the atmospheric pressure outside the tank to press the dirt into the tank through the sewage suction pipe. When the sewage is discharged, the vacuum pump puts the atmospheric pressure outside the tank into the tank, and uses air pressure to discharge the dirt out of the tank (the continuous working time of the vacuum pump generally does not exceed 30 minutes).
Vacuum pump air flow sequence
The flow sequence of the air flow in the gas path is as follows: when sucking dirt, the vacuum pump sucks the air with a certain humidity in the tank into the water-gas separator, where the water is separated and flows back into the tank, and the gas enters the vacuum pump through the four-way valve along the pipeline Air inlet. In the pump, it is mixed with lubricating oil and discharged from the exhaust port through the compression chamber. In particular, the mixture is initially separated by the coarse filter, and the separated oil flows back to the oil pump. The mixed gas is further separated by the oil and gas separator, and then enters the four-way valve and is discharged into the atmosphere. Manual operation of the four-way valve can change the direction of air flow, and suction and discharge are free.

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